<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>2_对props进行限制</title>
</head>

<body>
    <div id="test1"></div>
    <div id="test2"></div>
    <div id="test3"></div>
    <script type="text/javascript" src="../js/react.development.js"></script>
    <script type="text/javascript" src="../js/react-dom.development.js"></script>
    <script type="text/javascript" src="../js/babel.min.js"></script>
    <!-- 引入prop-types 用于对组件bian'q -->
    <script type="text/javascript" src="../js/prop-types.js"></script>
    <script type="text/babel">
        // 创建组件
        class Person extends React.Component {
            render() {
                console.log(this);
                const { name, sex, age } = this.props;
                // props是只读的
                // this.props.name='Jack'
                return (
                    <ul>
                        <li>姓名：{name}</li>
                        <li>性别：{sex}</li>
                        <li>年龄：{age + 1}</li>
                    </ul>
                );
            }
        }
        const speak = () => {
            console.log("我要说话了");
        };
        const p = {
            name: "may",
            sex: "女",
            age: 18,
        };
        // 对标签属性进行类型、必要性的限制
        Person.propTypes = {
            name: PropTypes.string.isRequired, // 限制name必传，且为字符串
            sex: PropTypes.string, // 限制sex为字符串
            age: PropTypes.number, // 限制age为数值
            speak: PropTypes.func, // 限制speak为函数
        };
        // 指定默认标签属性值
        Person.defaultProps = {
            sex: "男", // sex默认为男
            age: 18, // age默认为18
        };

        // 渲染组件到页面
        ReactDOM.render(
            <Person name="tom" sex="男" age={20} speak={speak()} />,
            document.getElementById("test1")
        );
        ReactDOM.render(
            <Person name="amy" sex="女" age={19} speak={speak()} />,
            document.getElementById("test2")
        );
        ReactDOM.render(<Person {...p} />, document.getElementById("test3")); // 批量传递标签属性
        // ReactDOM.render(<Person name="may" sex="女" age="18" />, document.getElementById('test3'));
    </script>
</body>

</html>